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| Hauptverfasser: | , , |
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| Format: | Recurso digital |
| Sprache: | |
| Veröffentlicht: |
Zenodo
1999
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| Online-Zugang: | https://doi.org/10.5281/zenodo.15419702 |
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Inhaltsangabe:
- In this work, the mechanism of fibre positioning imperfections observed in carbon epoxy composites is studied. The fibre waviness is established as being the consequence of a fibre microbuckling phenomenon created by resin shrinkage during the hot phase of the thermosetting reaction instead of final cooling stage of cure process. In order to have a good description of this fundamental mechanism, both experimental and theoretical studies on single fibre composite specimens are done. The physical and mechanical aspects of the thermosetting reaction are established for the 120�C isothermal cure. The structure is described through a model of a fibre embedded in an infinite matrix medium and which is generalized to the case of laminates. The microbuckling possibilities are analyzed through a matrix response determined experimentally during it's cure by a DMTA method.